Bubble atomization technology solves the problem of atomization of high-viscosity fuels, and has significant effects on improving the combustion efficiency and reducing pollution. Therefore, the market prospects are very wide. The long-aerobic mechanical pressure atomizing oil gun is an internal oil returning structure. It uses the oil return to adjust the overall door as the main tone. This method is used to adjust the load when the range of change is very small. Both nozzles have unstable atomization effects and are prone to defects such as coking. The control system was originally monitored using conventional instruments and the degree of automation was low.
After the reform, use the residue type 0 atomized atomizer gun and use 0.54 658 temperature 60 or more steam as the atomization steam source. The residual oil pressure is only 0.580.80. The fuel temperature is only 8283, and the viscosity is less than 20, the slag can be realized. The oil-cooled furnace is electronically self-ignited and does not require light oil or gas. Through the gradual injection of the oil guns of each layer and the adjustment of the fuel inlet adjusting gate, ignition start and gradually increasing the load are realized.
In particular, between the 70125 elbow recognition, there is no need to retreat the oil gun, just adjust the oil inlet adjustment door, adjust the amplitude to reach the rated load of 44, so that the control is simple and convenient. Due to the simplification of the system, it provides convenient conditions for the realization of automatic control. In this overhaul, the unit's original conventional instrument monitoring was changed to computer automatic control.
According to the Huangpu Power Plant provided a total of 21 months before and after the overhaul in 1997.
In July, 1999, the boilers accumulated raw data on the amount of heavy oil consumed by gas-producing children and the calorific value of heavy oil. The monitoring unit converted the boiler steam production volume and the consumption of heavy oil before and after the conversion to standard fuel consumption, and made a relationship curve for the reformed heavy oil. The consumption curve, both slope and pitch, is lower than before the transformation. The cumulative savings of heavy oil for 8 months after the renovation was 370.562.
Various liquid fuels, such as diesel crude oil heavy oil residual oil, are widely used in various industries and civil fields of industrial production in China. The application of heavy oil heavy residue oil with relatively low price is more common, but due to the difficulty in atomization of these fuels, fuel combustion is incomplete, energy consumption and large child pollutants are generated, affecting the product quality equipment life and production costs of the company.
The main reason for the low operating efficiency of Huang Shikun's centrifugal pumps is that the actual operating conditions of the centrifugal pump are often lower or lower than the motor speed of the pump 1. Therefore, the throttle control of the pump outlet valve is adopted.
1 The valve adjustment is simple and convenient, but from the viewpoint of energy saving, the pump is operated in an inefficient area, resulting in waste of energy 4 and light and uneconomical operation of the drive motor.
Energy-saving technical measures to determine a reasonable selection parameters 0 ugly is the premise and key to ensure the pump efficiency. At present, there is a relatively large number of parameters that are relatively large. In order to make the selection of pumps reasonable, reduce waste and save energy, we should make corresponding provisions on the flow and pressure margin according to specific conditions and design experience.
1 The determination of the flow rate When the flow rate can be accurately calculated in the continuous and stable operation of the pump, it is possible to leave no children or less room. If there is more room for long-term development, the results of the economic trade-off will not be as good as the future. .
2 Open the head, set the parameters reasonable, more difficult than the determination of the flow of children, from the energy point of view, pay attention to the following points is beneficial.
0 Pipeline resistance should not be estimated and should be determined by calculation. =Good + good The good ones are relatively fine because they are easy to calculate, but they are often worth calculating due to the fact that the calculations are a little more complicated than the fact that they have not been carefully calculated and are often overestimated. For example, if the pump is estimated to be 34, it is prone to happen. Each year, it will pay nearly 1,000 yuan more.
Leave room to ask. When you can give a good value accurately, you don't have to make allowances. To avoid 0, it is better to have both of them at the same time, because Yu Tong, whoever is the child, naturally brings the remainder to other parameters.
Pump performance selection For process pumps with stable flow rates, the focus of performance selection is to ensure the efficiency of the pump operating point. When the process flow regulation is larger and more tedious, pay special attention to whether the 9-curve and 7-curve are in the adjustment range. flat. Pumps operate in more efficient areas.
In parallel operation, the operation efficiency of the pump can be improved by using a number of pumps in parallel in a situation where a large degree of adjustment is required and the flow of the child is large. In combination with the spare pump, consider the application of more 03 series magnetic water processor in the hot water boiler circulation system. Liu Yuexi Our factory Chong'an boiler room heating system has 5 hot water boilers, which are used for winter picking in residential areas of factories. Before the boiler water treatment used ion-softened water equipment, but failed to solve the scaling problem. Because when the water was first added to the boiler, due to time constraints, the water flow was high and the speed of the water flow was too high. Ion soft water equipment had no time to quickly perform water treatment in a short period of time. Only after the replenishment of the water did it serve to soften water. . Since water is not treated in time by technology, scale will inevitably appear in the operation of the boiler. For this purpose, in 1997 we used the 03 series magnetic water processor manufactured by Shenyang Huitian Industrial Co., Ltd. Jinquan Water Treatment Equipment Development Center to install it in the boiler room. On the circulation pipe. After two winter heating periods of operation, shutdown inspection, anti-scaling and descaling energy-saving effect is obvious, and achieved better social and economic benefits.
The working principle of the 1.6 series of magnetic water treatment, 3 series of magnetic water processor selected the first generation of high-performance permanent magnet material 18, taking into account the nature and use of water, designed into two-stage and multi-stage magnetic circuit, forming a gradient non-uniform Strong polar magnetic field. Conductive water cuts the magnetic lines of force at a constant speed, and water of macromolecules is cut by the magnetic field into a bimolecular leaf 02 or a single molecule ratio of 0. The hydrogen bonding angle of water molecules changes, resulting in a change in the dipole moment. Make water molecules produce a series of physical and chemical changes. This change in the water oxygen capacity of hydrogen peroxide, osmotic pressure, conductivity, solubility, polymerization degree, water clarification speed, etc., has been significantly improved, and the surface tension and wetting angle of water are clearly small.
In the magnetically treated water, the precipitated crystal structure is acicular aragonite crystals. The aragonite crystals have poor structural and tensile strength, poor resistance to pressure, poor adhesion, and are difficult to bond into hard, economical and reasonable materials. The solution can be 23 no more than 4 parallel pumps of the same type.
From the point of view of energy saving and economical operation, the pumps must be equipped with different types and sizes of pumps to achieve the matching configuration of the pumps.
If the water consumption is large, a large pump can be operated. If the water is small, it is necessary to stop the large pump to open the small pump. According to the specific changes, the pump heads of the Taida Pump and the small pump can also be operated in parallel with the same or similar head requirements. The reason why only the pump was started as soon as possible was determined was that when the pump was operated, it could greatly save energy consumption and reduce throttling losses, and it also operated in an efficient area, which also prolonged the service life of the pump.
The operation mode of the large and small pump configuration not only has flexible adjustment, but also has good economical efficiency and greatly improved safety and reliability. Its advantage is that all the water sewers in the street are operating at high efficiency. Especially the characteristics of high-efficiency water pumps are fully effective, which makes the power consumption of the water pump significantly reduced. It is possible to flexibly adjust the flow of the feed water according to the load change of the whole plant and to produce scale. It can arbitrarily generate nuclear crystals in water, form sludge and settle down, discharge with scale = high-potential particles with high charge, and the hard scale adhered to the tube becomes soft gradually, and its surface is dissolved in water. It slowly peels off, eventually removing scale, and the magnetically treated water, due to changes in properties, causes hydrogen ions in the water to adhere to the wall of the tube. The formation of hydrogen ion film, thereby hindering the oxygen and, gas and tube wall contact, to protect the metal to prevent corrosion.
2,3 Series Magnetic Water Processor Economic Analysis The 03 Series magnetic water processor overcomes the shortcomings of ionized soft water equipment and is installed directly on the boiler circulatory system. It is not affected by the water speed of the time and the boiler circulatory system can be removed at any time. Scale anti-scaling. Moreover, there is no need for floor space, no special operation and management, no energy, no environmental pollution, and it is an updated generation of water treatment equipment. Its indicators are better than the demineralized water treatment and administration methods.
Installation and use instructions should be installed in the water heater hot water boiler backwater pipe, the closer to the boiler the better the effect; 2 the use of temperature does not exceed 80; 3 equipment to ensure regular time after the installation of sewage; 4 to avoid strong vibration .
Editing Huang Xiuyun provides ease of operation.
When the design is improved, the gap between the rings should be reduced as much as possible in order to improve the quality of the assembly and assembly and ensure the safe and reliable operation of the pump.
Strengthen maintenance, promptly repair a reasonable leakage gap, and when it is found that the leakage gap after the crack or wear of the collar has exceeded the specified value, it should be replaced or repaired because the normal internal leakage of the pump is set to 3, when the ring gap is normal Two times the value, the internal leakage reaches the pump operating in parallel, and the flow of the orifice ring will cause uneven distribution, resulting in a drop in pump efficiency.
According to experience and measured data, the radius of the mouth ring is determined to be 2.53.5 for the outer ring of the impeller, which is also very effective for improving the efficiency of the existing pump. The editor Huang Xiuyun has been working straight forward to repair the 2OOONo8BO.
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